Andykap
NES Member
It depends on the town. Some towns / cities does not require the copy of the Naturalization certificate.If he/she is applying for an LTC in Mass, they will need a copy of their naturalization certificate in addition to alien number and naturalization date.
The Mass form only ask for your Naturalization number. That number provides a history of each person, ex: when they first entered the country etc.
Just get the information from the town police to eliminate any ambiguity.